Australia lost the wicket of opening batsman Matthew Hayden as they moved 379 runs clear of Sri Lanka late on day three of the second Test at Bellerive Oval in Hobart.
Australia elected not to enforce the follow-on despite bowling Sri Lanka out for 246 in the final session, and took their second innings to 1 for 83 when Hayden was trapped lbw by Muttiah Muralidaran for 33.
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Hayden was Muralidaran's third scalp of the Test after taking a costly 1 for 140 in the first innings, moving the wily off-spinner to within five wickets of Shane Warne's Test record.
Phil Jaques was cruising towards another half-century unbeaten on 38, joined at the crease by skipper Ricky Ponting.
Chasing 5 for 542 declared, the Sri Lankans lost five wickets in the middle session as they fell far short of Australia's total, with only captain Mahela Jayawardene (104) offering any real resistance.
Jayawardene was the last man out when he spooned a Brett Lee delivery straight to Michael Clarke at deep square leg.
His century was his first against Australia and 19th overall but only his fifth outside of Sri Lanka.
Lee was the pick of the Australian bowlers, taking 4 for 82 off 23.2 overs.
Clark finished with 2 for 32, Stuart MacGill 2 for 81 and Mitchell Johnson 1 for 44.
Jayawardene's gutsy century against the odds served to prolong Australia's time in the field and is surely the catalyst for Australia captain Ricky Ponting's decision to rest his bowlers.
